[" The number of vacant hybrid orbitals which participate in the formation of "3" -centre "2" electron bonds i.e."],[" banana bonds in diborane structure is: "],[" The pH of "0.1MRCOOH(Ka=10^(-5))" aqueous solution is "]

The number of vacant hybrid orbitals which participate in the formation of 3-centre 2 electrons bonds i.e., banana bonds in diborane structure is :

The pH of a 0.1 M CH_(3)COOH which is 2% ionised in aqueous solution is

Calculate the pH of 0.2 M CH_3 COOH (K_a = 1.5 xx 10^-5) .

Calculate pH solution: 0.1 M CH_(3)COOH (K_a=1.8 xx 10^(-5))

Which of the following statements are correct regarding diborane? I. Two bridged hydrogen atoms and two boron atoms in one plane. II. Out of six B-H bond, two bonnds can be described in terms of 3 centre-2 electron bonds. III. Out of six B-H bonds, four B-H bonds can be described in terms of 3 centre-2 electron bonds. IV. Four terminal B-H bonds are two centre electrons regular bonds.

In [ZnBr_(4)]^(2-) electron pairs in sp^(3) hybrid orbitals of the zinc atom form bonds to the bromine atoms. Determine the number of unpaired electrons in the complex